278results about How to "Reduce destructive power" patented technology

The invention provides a chicken bone protein zymolyte and a chicken essence substrate prepared by the chicken bone protein zymolyte, belonging to the technical field of poultry processing. The invention solves the problems of high cost for producing a chicken essence substrate, limited raw material sources, unavailable effective utilization generally by discarding leftovers, such as chicken bone, and the like, and the like in the prior art. In the invention, a novel chicken essence substrate is developed by adopting the cheap leftovers, namely chicken bone as a raw material and utilizing a biological enzymolysis technology and a hot reaction spice research technology; the chicken essence substrate is prepared by the following steps of: adopting the chicken bone zymolyte obtained after the chicken bone is subjected to double enzymolysis by pancreatic enzyme and Flavourzyme composite flavor protease as a main material, mixing the main material with hydrolyzed vegetable protein (HVP), a yeast extract, glucose, xylose, thiamine, chicken oil and propylene glycol according to a certain proportion; and carrying out Maillard reaction in a high-pressure reactor to prepare the chicken essence substrate with vivid chicken fragrance. The chicken essence substrate has vivid chicken fragrance, rich and strong chicken fragrance and long aftertaste.

The invention discloses a vertical ventilating shaft explosion door capable of automatically resetting after blast release and pressure relief, which belongs to the technical field of ventilating safety of coal mines and solves the problems that an explosion door fast depressurizes and releases blast air pressure and safely, automatically resets to close the mouth of a well and protects a ventilator device to be safely operated and normally ventilated when downhole blast impacts the mouth of a vertical ventilating shaft. A template pressure relief device and a skylight for a pilot pressure relief device capable of automatically resetting and closing are arranged on the top and a shell surface of the explosion door respectively; the explosion door is provided with four groups of hydraulic cylinders which synchronously move in two directions and are used for pulling and pushing the explosion door to automatically ascend and descend along the cylinders (tracks) and a hydraulic control and electric control system; the explosion door is also provided with a control device for operating a door body lifting hydraulic cylinder in a machine room and a pump station so as to realize natural ventilation and inverted ventilation operation; and a magnet steel sucking skylight is locked to realize inverted ventilation without manual operation. A composite technical system for operation and lifting control of the explosion door is safe and reliable, remote control operation is convenient and rapid, a ventilator is safely operated and ventilated during an accident, and an explosion-proof effect of the explosion door is achieved.

The invention provides a picture processing tunnel video moving object detection method. The method includes the following steps of sequentially establishing an initial background model, a real-time dynamic update background model, a local structure similarity measure function, and a local gray level statistics measure function, and extracting a moving object area according to the local structure similarity measure function and the local gray level statistics measure function. According to the picture processing tunnel video moving object detection method, the real-time dynamic update background model is established, so that the influence of illumination variation on tunnel environment moving object detection can be effectively inhibited; the local structure similarity measure function and the local gray level statistics measure function are constructed, so that discrimination of moving objects and background information are improved, detection erroneous judgment brought by single structural information is reduced, the moving object area can be well partitioned, and accuracy of tunnel environment moving object detection is improved.

The invention relates to a high-permeability glass cutter wheel with a chamfer on the side edge of a concave part of a cutting edge. The cutter wheel is provided with a V-shaped cutting edge part, a disc surface and a shaft hole, wherein the V-shaped cutting edge part comprises a first curved surface S1, a second curved surface S2 and an outer edge ridge L. The cutting edge and the concave part are formed on the periphery of the outer edge ridge L of the V-shaped cutting edge part; and a first chambering oblique surface and a second chambering oblique surface which are symmetrical with each other are formed on the side edge of the concave part. Due to the adoption of the structure, the blockage of glass chips in the concave part of the cutter wheel can be avoided or reduced, the cutting pressure is reduced, and a destructive fracture line at the cutting edge of glass is reduced, so that the glass cutting quality is improved, and the service life of the cutter wheel for cutting the glass is improved.

The invention is a low-electric arc AC trigger, comprising electromagnetic contactor, and its character lies in also comprising pulse power supply forming circuit and low-electric arc forming circuit as well as multifunctional failure detecting circuit, and it uses powerful pulse magnetic energy converted by instantaneous heavy current as the power to drive the contact of the contactor to act so as to switch on / off the load of the power supply, where the acting course each time is monitored by electronic circuit and the switching-on / off program is performed in the lowest voltage position of AC voltage, thus reducing the destructive power of electric arc and simultaneously the contactor itself adopts photoelectric coupling circuit so as to be monitored by external low-voltage signal instruction. And the invention is a device with overload protection, underphase protection, short-circuiting protection, earth leakage protection and other power safety protecting functions.

The invention discloses chicken bone fruity vermicelli which is composed of, by weight, 112-120 parts of wheatmeal, 10-20 parts of corn flour, 6-10 parts of black soybean powder, 10-21 parts of chicken bones, 3-5 parts of pears, 2-3 parts of apples, 3-4 parts of cherries, 2-3 parts of circium japonicum, 2-3 parts of banana skin, 2-3 parts of pearl grass, 1-2 parts of the root of kudzu vine, 2-4 parts of sunflower disc, 1-2 parts of pseudo-ginseng, 1-2 parts of poria cocos, 2-3 parts of fresh reed rhizome, 3-5 parts of mum, edible salt and water in proper amount. The chicken bone fruity vermicelli is smooth in mouthfeel, and added animal bones are subjected to decoction with traditional Chinese medicine and added with citric acid, so that separation of active ingredients like calcium in the bones is facilitated, absorption by human bodies is facilitated, collapsing force to nutrient in the chicken bones is small, nutrient substances in the bones can be fully retained in products, and human cell tissue is protected to a certain extent; the root of kudzu vine is used for treating fever with thirst, vomiting due to heat in stomach, cough with lung heat, pulmonary abscess and pyemesis, and heat strangury and acerbity pain, the pears can help organs to detox, and the apples can prevent cancers.

It is an object of the present invention to provide a trochoid type oil pump in which erosion of the rotor surfaces caused by cavitation is minimized, vibration and noise are reduced, and the structure is greatly simplified. The trochoid type oil pump of the present invention comprises a rotor chamber which has an intake port and a discharge port, an outer rotor, an inner rotor, and shallow grooves which are formed on the side of the initial end portion of the discharge port on the circular circumference of the track of the positions of the bottom portions of the teeth created by the rotation of the outer rotor. In a state in which the sealed spaces formed by the outer rotor, the inner rotor and a partition part between the final end portion of the intake port and the initial end portion of the discharge port are reduced in volume from the maximum volume, the sealed spaces Sa are caused to communicate with the shallow grooves.

The invention discloses a phase change energy absorbing polyurethane elastomer explosion-proof tank outer protection cover preparation method. According to the method, polymer polyol and an MDI type prepolymer are subjected to a reaction to form a polyurethane elastomer matrix with high strength and high toughness; by adopting a chemical foaming method, the density of the generated polyurethane elastomer is effectively reduced while the microporous elastomer structure with excellent energy absorption and shock absorption effects is formed; and the energy absorbing effect of the elastomer is further improved by adding a certain amount of solid phase change material micro-particles to the raw materials, wherein the solid phase change material micro-particles can generate solid-liquid phase change and liquid-gas phase change under the action of explosive shock wave energy, have high phase change potential heat, and contain a plurality of crystal waters. The preparation method comprises: mixing the required raw materials, uniformly pouring into a specially-made explosion-proof tank outer protection cover mold, and carrying out foaming curing molding demolding to obtain the lightweightpolyurethane elastomer explosion-proof tank outer protection cover having good energy absorption effect. According to the present invention, with the method, the safety of explosion-proof equipment can be effectively enhanced, and the weight of explosion-proof equipment can be significantly reduced.

The invention provides a gallium nitride based light-emitting diode (LED) epitaxial wafer and a growth method thereof. From down to up, the structure of the epitaxial wafer successively comprises a substrate, a gallium nitride based buffer layer, a non-doped gallium nitride layer, an n type gallium nitride layer, a multi-quantum well layer, a p type AlGaN layer, a p type gallium nitride layer and a contact layer. The epitaxial wafer is characterized in that the contact layer is an n type InxGa1-xN layer, or a p type InxGa1-xN layer, wherein x is a molar coefficient and is more than 0 and less than 1. The modulated doped contact layer epitaxial structure is obtained through adding an In component and a doped layer with gradually changed concentration, thereby relieving the impact of static electricity on a gallium nitride LED and improving the tolerance capability of the LED on the static electricity. According to a standard chip process, the chip with 300*300 mu m<2> is manufactured, and the electronic static discharge (ESD) yield of the chip in reverse 4000 V is above 90%.

The invention discloses medicine-food dual-purpose colorful vermicelli which comprises the following raw materials by mass: 50 to 95% of refined wheat flour, 5-50% of cell wall breaking powder, 0.5-2% of salt, 3-12% of a natural food additive and the right amount of water. The cell wall breaking powder is prepared by low temperature superfine pulverization, and is realized through the technology of superfine powder. After cell wall breaking of medicine-food dual-purpose food materials, human medicine and food absorption rate can be increased, the bioavailability is improved, easy fracture of in the vermicelli production process can be effectively prevented, and the finished product rate can be improved. The preparation technology of the medicine-food dual-purpose colorful vermicelli is as follows: superfine grinding, dosing, homogeneous mixing, kneading dough, curing, pressing, molding, shelving, low temperature drying, off-shelving, section cutting, packaging to obtain the finished product, and can produce all new varieties of high content of colorful vermicelli.

The invention discloses a debris flow step-by-step filtration system. The system is composed of a plurality of debris flow filtering devices arranged on a debris flow gully. Each debris flow filtering device comprises a speed reduction platform, wherein the two sides of the end, close to the upstream, of the speed reduction platform are provided with blocking dams which are fixed to the deep of the debris flow gully through bases arranged at the bottom; the end, close to the downstream, of the speed reduction platform is connected with a filter screen; the two sides of the filter screen are provided with anchor rods anchored into the debris flow gull; the two sides of the speed reduction platform are provided with slit stopping sites which are formed by defining the blocking dams, the speed reduction platform, the filter screen and mountains on the two sides of the debris flow gully. The debris flow step-by-step filtration system can conduct multiple times of separation on stones, silts and sundries in debris flow step by step, debris flow subjected to multiple times of separation can be changed into flood with extremely low sand content, and destructive force is greatly reduced. Flood can be directly led into a reservoir. The debris flow step-by-step filtration system is particularly applicable to regions with reservoirs on the downstream.

The invention belongs to the technical field of constructional engineering equipment, and particularly relates to a mutual pull and traction type self-resetting reinforced concrete frame column base joint comprising a concrete pile (1) and a concrete foundation (2). The mutual pull and traction type self-resetting reinforced concrete frame column base joint is characterized in that the lower ends of a first anchorage device (5) and a second anchorage device (6) are connected with a first steel strand (7), a second steel strand (8), a third steel strand (9) and a fourth steel strand (10) respectively, the first steel strand (7), the second steel strand (8), the third steel strand (9) and the fourth steel strand (10) are arranged in a mutually opposite manner and are dragged through fixed pulleys (11) on a top face steel plate (4); and a protective cover (12) covers the fixed pulleys (11). The mutual pull and traction type self-resetting reinforced concrete frame column base joint reduces the collapsing force of an earthquake greatly and achieves the effects that the structure is stable under a small earthquake, the structure deforms greatly but is not destroyed and under a violent earthquake and restores after the violent earthquake.

The invention relates to a manufacture method of a needle roller bearing, in particular to a manufacture method of a rocker arm bearing which is required in the work of an engine valve of a motorcycle. The invention aims at solving problems existing in the current manufacture industry of vehicle rocker arm bearings and providing a manufacture method of a vehicle rocker arm bearing which has high accuracy and resists impact load. The manufacture method of a vehicle rocker arm bearing comprises the following steps of: a) processing an outer sleeve of the bearing, adopting a drum-shaped grindinghead (grinding wheel) to carry out coarse grinding on the inner diameter of the outer sleeve, ensuring that one second of the total length of the grinding head is in the outer sleeve during grinding,and using a small cylindrical grinding wheel for refine grinding; b) processing a cylindrical needle roller of which the chamfer width is smaller than or equal to 1mm; c) processing an inner sleeve (hollow pin shaft) of the bearing, first carrying out thermal refining on the raw materials of the inner sleeve, and then carrying out stress relief processing after coarse grinding and before refine grinding; and d) assembling the needle roller with the inner sleeve and the outer sleeve to obtain the bearing product.

The invention discloses a wind wheel height adjusting mechanism for a vertical axis wind turbine and a wind energy ship with the wind wheel height adjusting mechanism. The wind wheel height adjusting mechanism comprises a main tower section (304) and a lifting section (305), wherein the lifting section (305) is mounted in the main tower section (304) in a sleeving manner and can move in the main tower section (304); a wind wheel is mounted on the lifting section (305); a pylon lifting pulley block (309) is arranged on the main tower section (304); one end of a main lifting rope is connected with a winch (308); the other end of the main lifting rope bypasses the lifting pulley block and then is fixedly connected with the lifting section (305). The height of the wind wheel can be changed and locked according to the requirement; the system is matched with a paddle folding system, so that a force arm and destructive power of a destructive moment caused by hurricane can be greatly reduced, and the hurricane resisting capability of the wind turbine is further enhanced. In addition, the specific requirement of mobile wind energy utilization platform such as wind energy ships can be met, and the application field of the wind turbine is greatly widened.

The invention discloses a multienzyme cleaning agent for medical appliances, and belongs to the technical field of medical treatment. According to the multienzyme cleaning agent, 4-formylbenzeneboronic acid is added to effectively inhibit the protease activity during storage, and protease activity is prevented from being reduced; beta cyclodextrin and nonionic surfactant Pluronic-F88 in an aqueoussolution are subjected to host-guest recognition, a hydrogen bond is formed from adjacent beta-cyclodextrins through cavity peripheral cyclodextrin, and functions of other cleaning activators cannotbe influenced; polymethylhydrosiloxane, hexamethyldisiloxane and like are used as raw materials, tert-amino in intermediate and sodium chloroacetate perform a quaternization reaction, the appliance surface is protected from secondary pollution; and baicalin and bacterium prodigiosum polysaccharides are added to reduce rejection and pyrogen reaction caused by over-high load of microorganisms, and the use safety of medical appliances can be improved. The multienzyme cleaning agent can solve the problems of low bioenzyme activity and poor cleaning effect in an enzyme cleaning agent since proteasein current multi-enzyme cleaning agent can decompose other bioenzyme in a solution.

An apparatus for extracting power includes a track and an airfoil coupled to the track. The track includes first and second elongate sections, where the first elongate section is positioned above the second elongate section. The airfoil includes a pressure surface lying between a suction surface and the track, and is moveable in opposite directions when alternately coupled to the first elongate section and second elongate section.

The invention relates to a surface protecting block of a mound breakwater. The surface protecting block comprises a base body (A), and is characterized in that the base body (A) is provided with a base plate (1) and an arching protecting body (2), the protecting body (2) is arranged on the upstream face of the base plate (1), a cavity with an open end is formed between the protecting body (2) and the upstream face of the base plate (1), and a plurality of drainage holes (21) are formed in the surface of the protecting body (2). According to the arching protecting body mainly playing a role in water retaining, wave force can be attenuated better due to the shape of the arching protecting body; besides, since the cavity is formed between the protecting body and the base plate, a water body can fall when waves impact the protecting body, rotational flow is formed in the cavity, and therefore the acting force of water flow is further reduced; in addition, since the drainage holes are punched in the protecting body, on the one hand, water in the cavity can be drained through the drainage holes, one the other hand, convection can be generated between the drained water flow and waves of a next time of wave impact, so that the wave force is reduced, and damage power of the waves to the surface protecting block is reduced.

The invention relates to a track-type forced landing platform, which has a structure comprising an airplane landing bed, a forced landing platform rack and a straight track. With a straight track mode, the track-type forced landing platform can meet the requirements for the straight high-speed sliding motion of an airplane forced to land, reduces the impulse force generated when the airplane force to land lands by using the cushioning action of the airplane landing bed and improves the safe forced landing rate of the airplane.

The invention provides a multi-layer structure protective film and a preparation method and application thereof. The multi-layer structure protective film comprises a hardened layer, a buffering layer, an optical film and a silica gel layer which are sequentially arranged from top to bottom. The hardened layer is a UV photocureable coating layer. The buffering layer is a UV photocureable coating layer. The optical film is a PET base film. The ratio of the thickness of the hardened layer to the thickness of the buffering layer is 1 to 3. Compared with the prior art, the multi-layer structure protective film has the advantages that the surface hardness is high, and the UV hardened layer at the upper end of the novel protective film is high in hardness and excellent in scratch resistance and can better protect a display screen; the impact resistance is high, and according to the novel protective film, due to the fact that the buffering layer is arranged below the optical film, when the protective film is subjected to a heavy hit or collision, the buffering effect is obvious, the display screen is not prone to breakage, no fragments can happen to corners when the protective film is used for a long time, and injuries to human bodies are reduced.

The invention discloses a windproof sand-reducing wall for environment protection, and relates to the technical field of wind-sand-resistant walls. The windproof sand-reducing wall for environment protection comprises a wind-resistant sand-reducing wall, wherein a cavity for reducing sand is arranged in the wind-resistant sand-reducing wall; a wall base fixing seat for fixing is fixedly arranged on the bottom part of the wind-resistant sand-reducing wall; air inlet holes are uniformly arrayed on the surface of the inner side of the wind-resistant sand-reducing wall; curved plates for reducingsand are fixed to the surfaces of the inner sides of the air inlet holes; a sand reducing device for collecting sand and discharging air is in through connection to the bottom part of the wind-resistant sand-reducing wall, and is of a circular pipe structure; a rectangular groove is formed in the bottom part of the sand reducing device; arc-shaped sand blocking plates are arranged on the inner surface of the sand reducing device; and an air outlet is formed at the position, located above the part between the two arc-shaped sand blocking plates, on the inner surface of the sand reducing device.According to the windproof sand-reducing wall for environment protection provided by the invention, through the functions of the wind-resistant sand-reducing wall, the sand reducing device and an airpurification device, the wind sand content on the other side of the wind-resistant sand-reducing wall is greatly reduced, the living environment is improved to a certain extent, and the problems suchas the destructive power and the intrusiveness of wind sand are retarded.

The invention discloses a conical trajectory vibrating screen, and belongs to the field of vibrating screening machines. Vibrating strength of a screening machine is matched with distribution of materials on a screen face. The vibrating screen is mainly composed of a screen box, the screen face, vibrators, a vibrating reduction supporting device and a base. The vibrators are mounted on the feeding end of the screen box, and the feeding end of the screen box is connected with the base through the vibrating reduction supporting device; the discharging end of the screen box is hinged to a spherical support fixed to the base through an elastic rod or connecting rod; the length of the elastic rod is smaller than the length of the screen box; and the vibrators are single-shaft vibrators, and the center line of a vibration shaft of each single-shaft vibrator passes through the center of the spherical support located on the base. The spherical support is in sliding connection or rolling connection with the elastic rod. According to the vibrating screen, the damage force of the resonance phenomenon to a screening machine during starting or closing down is greatly reduced; and the vibrating screen has the beneficial effects of being reasonable in structure, stable in work and high in screening efficiency, saving raw materials and energy and the like and is suitable for screening work of various materials.

The invention discloses a protecting device for a debris flow frequently-occurring slope, and relates to the technical field of geological natural disaster equipment. The protecting device comprises abuffering slide rail; the bottom of the buffering slide rail is fixedly connected with fixed piers, and the bottom end of the buffering slide rail penetrates through the fixed piers, extends to the interiors of the fixed piers, and is connected with the ground through fixing piles; roads are arranged on the bottoms, away from one side of the buffering slide rail, of the outer surfaces of the fixed piers; the slope is connected to the surface, away from one sides of the roads, of the buffering slide rail; a fixing limiting block is arranged on the position, connected with the fixed piers, of the surface of the buffering slide rail, and decelerating sliding blocks are evenly arranged on the positions, above the fixing limiting block, of the surface of the buffering slide rail; and the surfaces of the decelerating sliding blocks are fixedly connected with buffering springs, and the decelerating sliding blocks are connected together in pairs through the buffering springs. According to theprotecting device for the debris flow frequently-occurring slope, the problems that existing debris flow prevention and control equipment has great difficulty in accurately predicting a disaster andtaking prevention and control measures in time in the face of the disaster, disaster prevention and control effects are poor, destructive power of a debris flow cannot be effectively reduced, and thelarge economic loss is caused are solved.

The invention relates to a device and a method for double-harvest hanging cultivation of oysters by double-layer raft frames in an open sea area. The device comprises an upper raft frame, a lower raft frame and a plurality of first ropes. The upper raft frame comprises a plurality of first float balls and a plurality of first float lines, the first float lines are connected to form a frame structure, and the first float balls are connected to the first float lines. The lower raft frame comprises a plurality of second float lines connected to form a frame structure and is connected with the upper raft frame through the first ropes. The device provided with the upper raft frame and the lower raft frame is adopted in typhoon seasons from June to November, and the lower raft frame sinking into the sea has high capability of resisting stormy waves, so that probability that baby oysters are separated from adherance is decreased and loss of cultivators is reduced.

The invention provides a debris flow prevention and treatment system. The debris flow prevention and treatment system can solve the problem that after water and stone of the debris flow are separated,stone blocks block a cover plate with holes and guarantee the debris flow water and stone separation system can durably and effectively play the role. The debris flow prevention and treatment systemcomprise a drainage system and a vibration system. The drainage system comprises a water collecting pool, the cover plate with the holes and a drainage pipe. The vibration system comprises a rotatingrod, a fixing shaft, a pedal, a support block and a spring. The debris flow prevention and treatment system can achieve effective control over the formation process and circulation process of the debris flow and solve the treatment problems of different scales of debris flow gullies. Soil and stone are separated from water by means of the water collecting pool and the drainage pipe, so that the hydrodynamic condition of the debris flow is weakened, and the damage power of the debris flow is reduced. The vibration system utilizes the kinetic energy of large stone blocks in the debris flow as power and can continuously and effectively guarantee that vibration happens, and therefore the cover plate is prevented from being blocked; and in this way, the drainage system can stably play the role,and effective prevention and treatment of the debris flow are achieved.

A rotational speed damper operable to dampen the speed of a gear by gradually decreasing the rotational velocity and angular acceleration of the gear over a time period beginning at the time the damper contacts the gear stop and ending at the time the gear reaches its first stopping point.

The invention discloses a method for synthesizing a nintedanib intermediate by using a microchannel reactor, and belongs to the technical field of synthesis of antitumor drugs. The inventive method is that N-(4-nitrophenyl)-N,4-dimethyl-1-piperazine acetamide is added in an organic solvent, and then the active carbon catalyst of loading 10% Pd is added as material I, and The material I is sent to the preheating module of the microchannel reactor for preheating; the preheated material I is sent to the reaction module group of the microchannel reactor, and the hydrogen is directly sent to the reaction module group of the microchannel reactor , make hydrogen and material I carry out reductive hydrogenation reaction, collect the reaction liquid that flows out from microchannel reactor outlet, aftertreatment obtains N-(4-aminophenyl)-N-4-dimethyl-1-piperazine B amides. The synthesis method of the invention can effectively shorten the reaction time, greatly reduce the potential safety hazard of hydrogen leakage, combustion and explosion, and is suitable for synthesizing the nintedanib intermediate.

The invention belongs to the field of chemical industry, and particularly relates to titanium dioxide special for plastic-steel profiles and a preparation method thereof. The technical problem to be solved by the invention is how to provide a preparation method for titanium dioxide special for plastic-steel profiles. The preparation method includes the steps of performing pulping, grinding and graded pretreatment on titanium dioxide rutile and then performing silicon oxide and aluminum oxide inorganic coating, and performing sieving and washing to perform organic coating to obtain the product.The titanium dioxide special for plastic-steel profiles prepared by the method has good weather resistance and dry powder flowability, and can well meet the subsequent use.

The invention relates to a method for synthesizing 4-amino-3-chlorophenol by means of a multiple-temperature-zone continuous flow microchannel reactor, which belongs to the field of organic synthesisof anti-cancer drugs, and solves the problems in the prior art that in a process of synthesizing 4-amino-3-chlorophenol, the product yield is low, the purity is low, the cost is high and the safety property of the product is poor and the like as raw materials are not easily available, the catalyst is high in cost and the synthesized intermediate product is unstable in diazonium salt. By means of the microchannel reactor, sulfanilic acid is taken as an initial raw material, a target product 4-amino-3-chlorophenol is obtained by three steps of diazotization, coupling of diazonium salt and reduction of an azoic compound. The method provided by the invention can be applied to large-scale production of 4-amino-3-chlorophenol.

The invention relates to an urban road rainwater detention and seepage system applicable to the North. The system comprises a rainwater well, a diversion tube, a seepage well, a rainwater detention and slow seepage layer and a rainwater tube. The system is characterized in that rainwater collected by the rainwater well in an urban road during rainfall flows into the seepage well in the green belt nearby the road through the diversion tube, and seeps into the rainwater detention and slow seepage layer, and surplus rainwater is drained into a municipal rainwater pipe network. The system effectively solves the problems that lots of urban roads are hardened at present, the urban rainwater runoff volume is large, the roadbed is easy to damage in winter after rainwater seeps down in cold northern regions and the like.

The invention provides a mobile terminal and a protecting method thereof, and relates to the field of electronics. The mobile terminal comprises a main body, a processor, a first sensor, a display screen and a protecting device, wherein the processor and the first sensor are arranged in the main body; the display screen and the protecting device are arranged on the same side of the main body; the first sensor is electrically connected with the processor; the protecting device has a first relative position and a second relative position relative to the main body; when positioned at the first relative position, the protecting device is flush with a display screen or is recessed to the inside of the main body relative to the display screen; and when positioned at the second relative position, the protecting device is projected out of the display screen. The first sensor is used for acquiring an acceleration value of the mobile terminal equipment; and the processor is used for acquiring the acceleration value transmitted from the first sensor, and when the acceleration value meets a preset condition, a first control signal is transmitted to the protecting device, so that the first relative position of the protecting device is switched into the second relative position. By the mobile terminal equipment, the problem that a display screen is damaged easily when existing mobile terminal equipment drops can be solved.